H&N - Brain

Question 1

Sinuses of the brain

Answer 1

Question 2

Meninges of the brain

Answer 2

Dura

Arachnoid

Pia

Question 3

Falx cerebri

Answer 3

Inner meningeal layer of dura mater

Question 4

Diaphragm sellae

Answer 4

Covers hypophysial fossa

Has an opening to allow infundibulum of pituitary to connect to base of brain

It’s reflection of dura mater

Question 5

Arterial supply to dura mater

Answer 5

Anterior meningeal artery

Middle meningeal artery

Posterior meningeal artery

Question 6

Anterior meningeal artery branch of?

Answer 6

Ethmoid arteries

Question 7

Middle meningeal artery branch of

Answer 7

maxillary artery

Question 8

Posterior meningeal artery branch of

Answer 8

Ascending pharyngeal

Occipital

Vertebral

Question 9

Where is CSF produced

Answer 9

Choroid plexus in lateral, 3rd and 4th ventricles

Question 10

Where is CSF reabsorbed

Answer 10

Through arachnoid villi which project as clumps (arachnoid granulations) in superior sagittal sinus

Question 11

Branches of internal carotid artery

Answer 11

Only press carotid arteries momentarily

Only = Opthalmic
Press = Posterior communicating
Carotid = Choroidal
Arteries = Anterior cerebral
Momentarily = Middle cerebral

Question 12

Circle of Willis anatomy

Answer 12

Question 13

Branches of vertebral artery

Answer 13

Anterior spinal

Posterior spinal

Posterior inferior cerebellar

Question 14

Branches of basilar artery

Answer 14

Anterior inferior cerebellar artery

pontine arteries

Superior cerebellar artery

Posterior cerebellar artery

Question 15

Dural venous sinuses

Answer 15

Question 16

Structures draining into dural sinuses

Answer 16

Diploic veins

Emissary veins (allow infection from outside in)

Question 17

Structures passing through cavernous sinus

Answer 17

CN6

internal carotid artery

Question 18

Structures passing through lateral wall of cavernous sinus

Answer 18

CN3, 4, V1, V2

Question 19

Parasympathetic ganglia

Answer 19

Ciliary

Pterygopalatine

Otic

Submandibular

Question 20

Nerve of ciliary ganglion

Answer 20

Oculomotor

Question 21

Function of ciliary ganglion

Answer 21

Pupillary constriction

Eye accommodation

Question 22

Pterygopalatine ganglion nerve

Answer 22

Greater petrosal nerve: facial nerve

Question 23

Function of pterygopalatine ganglion function

Answer 23

Innervation of

Lacrimal gland, mucous glands of nasal cavity, maxillary sinus and palate

Question 24

Otic ganglion nerve

Answer 24

lesser petrosal nerve of CN9

Question 25

Otic ganglion function

Answer 25

Innervation of parotid gland

Question 26

Submandibular ganglion nerve

Answer 26

chorda tympani to lingual (CN7)

Question 27

Function of submandibular ganglion

Answer 27

innervation of submandibular and sublingual glands

Question 28

Clinical finding in oculomotor palsy

Answer 28

Dilated pupil Eye go down and out

Question 29

Clinical findings in trochlear palsy

Answer 29

Eyes cant look down and in cant look downstairs

Question 30

Gross anatomy of saggital section of brain

Answer 30

thalamus surrounds 3rd ventricle Mamillary bodies inferior surface of hypothalamus

Question 31

Which part of cortex responsible for sensory/motor

Answer 31

Precentral gyrus motor Post central gyrus sensory

Question 32

Position of Brocca vs Wernicke's areas

Answer 32

Brocca- speach, frontal lobe Wernickes- comprehension, temporal lobe

Question 33

Hypothalamus anatomy

Answer 33

pituitary attached inferiorly by infundibulum (pituitary stalk) mamillary bodies anterior floor of 3rd ventricle

Question 34

Which cranial nerve doesnt originate from brainstem

Answer 34

CN11 Forms from roots of top 5 cervical spine Goes up through foramen magnum Comes down through Internal jugular foramen